Through a combination of LEGO and littleBits, we were able to create a super smart cockroach that reacts to its environment just like a real one would. It is able to navigate tricky spaces and it scurries when it is exposed to light. When it finds a dark place to hide, it lays low and stays put.
How it works:
Navigation - The two bend sensors act as sensing antennas to help the cockroach navigate its surroundings. When the cockroach approaches a wall, the closest bend sensor will be activated. This will cause the opposite wheel to stop spinning due to the inverter before the dc motor, steering the cockroach away from the wall.
Shadow Seeking - The cockroach has two light triggers. The light trigger is set on light mode, so when each of the sensors sees light, the wheels spin. When a light trigger sees darkness, it's corresponding wheel stops spinning, making it so the cockroach turns toward the darkness. If both light sensors are in the darkness, the cockroach stops moving completely.